What is the CVSS score of EUVD-2025-20593?

EUVD-2025-20593 has a CVSS 3.1 base score of 7.5 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N. EPSS exploitation probability: 0.2%.

Which versions of Windows are affected by EUVD-2025-20593?

CVE-2025-48814 affects Windows Remote Desktop Licensing Service and permits unauthenticated remote attackers to bypass a critical security feature, potentially enabling unauthorized access to RD…. A patch is available.

How to fix or mitigate EUVD-2025-20593?

Within 24 hours: Inventory all Windows systems running Remote Desktop Licensing Service and isolate affected servers from untrusted networks where possible. Within 7 days: Apply vendor-released patch to all identified RD Licensing Service instances and test in a staging environment before production rollout. Within 30 days: Conduct a complete audit of RD licensing access logs for indicators of exploitation and verify all RD gateway/licensing configurations are properly restricted to authorized networks.

Windows EUVD-2025-20593

| CVE-2025-48814 HIGH

Missing Authentication for Critical Function (CWE-306)

2025-07-08 secure@microsoft.com

Windows Authentication Bypass Microsoft Windows 10 1607 Windows 10 1809 Windows 10 21h2 Windows 10 22h2 Windows 11 22h2 Windows 11 23h2 Windows 11 24h2 Windows Server 2008 Windows Server 2012 Windows Server 2016 Windows Server 2019 Windows Server 2022 Windows Server 2022 23h2 Windows Server 2025

7.5

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.5 HIGH

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Lifecycle Timeline

Analysis Updated

Apr 16, 2026 - 06:32 EUVD-patch-fix

executive_summary

Re-analysis Queued

Apr 16, 2026 - 05:29 backfill_euvd_patch

patch_released

Patch available

Apr 16, 2026 - 05:29 EUVD

10.0.14393.8246,10.0.19044.6093,10.0.20348.3932

EUVD ID Assigned

Mar 16, 2026 - 04:21 euvd

EUVD-2025-20593

Analysis Generated

Mar 16, 2026 - 04:21 vuln.today

CVE Published

Jul 08, 2025 - 17:15 nvd

HIGH 7.5

DescriptionCVE.org

Missing authentication for critical function in Windows Remote Desktop Licensing Service allows an unauthorized attacker to bypass a security feature over a network.

Analysis

Missing authentication for critical function in Windows Remote Desktop Licensing Service allows an unauthorized attacker to bypass a security feature over a network.

Technical ContextAI

An authentication bypass vulnerability allows attackers to circumvent login mechanisms and gain unauthorized access without valid credentials. This vulnerability is classified as Missing Authentication for Critical Function (CWE-306).

RemediationAI

Implement robust authentication mechanisms. Use multi-factor authentication. Review authentication logic for bypass conditions. Remove default credentials.